Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4373981 | Process for the manufacture of objects from water-hardened material | David G. Ellis, Johann Jansen, Jan M. J. M. Bijen | 1983-02-15 |
| 4361616 | Laminated board | — | 1982-11-30 |